000 00319nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRR.0047
100 _aRamamurti, P.V.
245 0 _aEmpirical investigation of roles and problems of middle aged and older people
260 _c1972
300 _a86p.
942 _cBK
999 _c13511
_d13511